Press Release

GMS Announces Secondary Public Offering of Common Stock

Company Release - 12/11/2017 4:37 PM ET

TUCKER, Ga.--(BUSINESS WIRE)--
GMS Inc. (NYSE:GMS) (the “Company”), a leading North American
distributor of gypsum wallboard and suspended ceiling systems, announced
today the launch of an underwritten secondary public offering of
5,000,000 shares of common stock by certain of the Company’s existing
stockholders, including certain affiliates of AEA Investors LP
(collectively, the “Selling Stockholders”). The shares will be offered
to the public at a fixed price, which may be changed at any time without
notice.

The Company is not selling any shares in this offering and will not
receive any proceeds from the sale of shares being sold by the Selling
Stockholders in this offering.

Morgan Stanley is acting as sole underwriter for the offering.

An automatic shelf registration statement (including a prospectus)
relating to these securities was filed on December 11, 2017 with the
Securities and Exchange Commission (the “SEC”) and became effective upon
such filing. Before you invest, you should read the prospectus in that
registration statement and the documents incorporated by reference in
that registration statement, as well as the prospectus supplement
related to this offering. Copies of these documents are available at no
charge on the SEC’s website at www.sec.gov. Alternatively, copies of the
prospectus supplement and the accompanying prospectus, when available,
may be obtained from Morgan Stanley & Co. LLC, Attn: Prospectus
Department, 180 Varick Street, 2nd Floor, New York, NY 10014

The offering of these securities is being made only by means of a
prospectus supplement and an accompanying prospectus. This press release
shall not constitute an offer to sell or the solicitation of an offer to
buy these securities nor shall there be any sale of these securities in
any state or jurisdiction in which such offer, solicitation or sale
would be unlawful prior to registration or qualification under the
securities laws of any such state or jurisdiction.

About GMS:

Founded in 1971, GMS operates a network of more than 210 distribution
centers across the United States. GMS’s extensive product offering of
wallboard, suspended ceilings systems and complementary interior
construction products is designed to provide a comprehensive
one-stop-shop for our core customer, the interior contractor who
installs these products in commercial and residential buildings.